Let's Get to Breedin', Christians

Muslims are now the world's biggest religious denomination.

Update: Good point from Mark Krikorian at the Corner:

Since when did Islam become a "denomination"? For want of a better word, that's how you could describe the Sunni and Shia, and the Sunni and Catholics appear to be about equal in number. There are still a lot more Christians than Muslims.

Indeed there are, but Islam is number two with a bullet (HA!). I can see why the Vatican wants to get this information out there. They've got a pretty long-term view of things, and they see a developing trend that they're not happy about.